Measuring and testing – Gas analysis – Gas chromatography
Patent
1984-07-05
1986-01-07
Kreitman, Stephen A.
Measuring and testing
Gas analysis
Gas chromatography
7386373, 7386483, 137253, 251 12, G01N 3108
Patent
active
045627240
ABSTRACT:
A multi-port, fluid-activated valve mechanism in which positive pressures of control fluids are used to sequentially actuate fluids which seal respective valve ports sequentially. Fritted glass and liquid metals impervious to fritted glass are used as valving means.
REFERENCES:
patent: 2588214 (1952-03-01), Dawson
patent: 2712399 (1955-07-01), Blears
patent: 2834366 (1957-01-01), Bond
patent: 3170631 (1963-01-01), Whitlow
patent: 3481205 (1966-10-01), Schmidlin
patent: 3492873 (1970-02-01), Broerman et al.
patent: 3511080 (1970-05-01), Roof
patent: 3633426 (1972-01-01), Broerman
Kreitman Stephen A.
Lavin L. M.
Phillips Petroleum Company
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